Use after free in Windows DNS allows an unauthorized attacker to deny service over a network.
CVSS v3.1 Score
5.9
/ 10.0
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Information
- Published
- 8 sept. 2026
- Updated
- 10 sept. 2026
- Status
- Analyzed
- Source
- secure@microsoft.com
Affected products
microsoft windows 10 1607
Versions : 10.0.14393.9512
microsoft windows 10 1809
Versions : 10.0.17763.9245
microsoft windows server 2012
Versions : r2
microsoft windows server 2016
Versions : 10.0.14393.9512
microsoft windows server 2019All Windows Server CVEs →
Versions : 10.0.17763.9245
microsoft windows server 2022All Windows Server CVEs →
Versions : 10.0.20348.5622
microsoft windows server 2025
Versions : 10.0.26100.33438
Weaknesses (CWE)
CWE-416
References (1)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-78523PatchVendor Advisory
Similar CVEs
Other vulnerabilities of type CWE-416
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